Aluminum alloy.



WILLIAM A. MOADAMS, 0F BAY SHORE, NEW YORK.

ALUMIEUM ALLOY.

Specification of Letters Patent.

Patented Jan. re, new.

No Drawing. Application filed April 15, 1914, Serial No. 832,053.Renewed June 6, 1916. Serial No. 102,089.

To all whom it may concern:

Be it known that 1, WILLIAM A. Mo-

, ADAMS, a citizen of the United States, and

alloy with the object in view of providing a stiff and strong castingalloy particularly Well suited for small castings.

With this end in view, my invention con sists of an aluminum alloycomposed of aluminum, zinc and copper, in which the proportion byweight, of zinc exceeds the copper and the aluminum exceeds the zinc.The aforesaid elements are preferably combined in substantially theproportions by weight of one hundred eight partsaluminum, forty-sixparts zinc and twenty parts copper.

In preparin the alloy, a. portion of the aluminum is rst meltedand-raised to a heat sufliciently high to fuse the copper, the copper isthen introduced and after the mass is somewhat cooled, the zinc isintroduced. During the introduction of the elements, the mass should bekept thoroughly agitated. When all the elements have been introduced,the mass While still in a fluid state may be poured into ingots forshipment or for impresence of two witnesses, this 14th day of.

April, 1914-.

I A. MQAD Witnesses: 1

F. GEORGE BARRY, LIDA M. Eoemr.

